SWXCR disklabel/partitions and RAID-5 disks

From: <pmccook_at_metronet.com>
Date: Tue, 3 Oct 1995 09:09:01 -0500

Hi,

  I am using the Storage Works Raid controller but am having difficulty making
the transition from JBOD disks to RAID-5. My UFS filesystems on the 3 disks
look something like this when the RAID level is JBOD:

                /dev/re0a /
                /dev/re0g /usr
                /dev/re1a /data1
                /dev/re1g /data2
                /dev/re2a /data3
                /dev/re2g /data4

        Each disk has a separate disklabel using the SWXCR disktab type (re).
However, once I set up the 3 disks as RAID-5 and boot into OSF/1, I am only
able to disklabel the re0 device:

                disklabel -rw re0 SWXCR

        re1 and re2 are no longer recognized, as the 3 disks appear to be
grouped as one volume (re0).

        My question is this: how can I set up all of my original UFS
filesystems on this new RAID logical drive. Are there other device files I
should be using? Is it a requirement to move to AdvFS or can I restore my
original UFS filesystems. I appreciate any help and will summarize. Thanks.


Patrick McCook
pmccook_at_metronet.com

..
Received on Tue Oct 03 1995 - 15:52:44 NZDT

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